Poor, very poor. The graphics and animations are not so bad, and the menu actually translates to a visually superior game creating the impression that this game would fulfill its premise. But no, the execution was horrible. You'll be forcing yourself to do the same thing all over again. With only one button needed, spamming it while not caring how much you abduct because scores seem pointless in a game this repetitive, makes the experience boring and blunt. It needs more variety, a whole lot of it.
You'll be amazed by how little you'll be doing in this game other than moving a bloody UFO and spamming the abduct key. It is so much improvable. The big verdict is a 4/10, considering the innovation and not-so-bad visuals, but still needs improvement.